Home / 7,972.91-11,002.71-4,388.28

Finding the Fourth Proportional to 7,972.91, 11,002.71 and 4,388.28

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Solution

The fourth proportional to 7,972.91, 11,002.71 and 4,388.28 is: 6,055.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.91 : 11,002.71 = 4,388.28 : x
  2. Step 2: Convert to fraction form
    7,972.91/11,002.71 = 4,388.28/x
  3. Step 3: Cross multiply
    7,972.91x = 11,002.71 × 4,388.28
  4. Step 4: Simplify right side
    7,972.91x = 48,282,895.28
  5. Step 5: Solve for x
    x = 48,282,895.28/7,972.91
  6. Step 6: Final answer
    x = 6,055.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.